Umbelliferone methyl ether

Unfortunately, many natural coumarins have been assigned trivial names, mostly botanically derived. Although these can facilitate discussion, to a considerable extent they serve to confuse, especially since many of the endings (e,g, -ol, -one) are not at all consistent with structure. Thus umbelliferone (2) is a phenol while osthol (143) is the methyl ether of osthenol (142). Structurally closely related coumarins can have markedly different names aculeatin (249) is the epoxide of toddaculin (248), both of which occur in Toddalia aculeata, while conversely almost identical trivial names can be given to structurally quite dissimilar coumarins, e. g. ferudenol (339) and ferulenol (481). Not infrequently, the same coumarin isolated by different workers from different plant sources is given two or even three trivial names and even enantiomers are known with distinct trivial names, e.g. marmesin (103) and nodakenetin (104). 

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